I was very impressed with the browser-based version of secondlife viewer. Unfortunately i spent most of that hour going thru preferences so that i could better use the viewer (im usually am a firestorm user) which is why i wish the testing was longer. But again I am very impressed :)
However, it was a little on the dark side, and trying to change the exposure did not help. I could see, it was bright enough for that, but i was trying to decorate and I wasn't sure the colors were the colors i wanted because the screen was darker than i normally would have it.